PTO output shaft question
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=146942
Printed Date: 10 Aug 2025 at 4:24pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: PTO output shaft question
Posted By: Hubnut
Subject: PTO output shaft question
Date Posted: 28 Jan 2018 at 4:17pm
How do I hold this PTO adapter onto the PTO output shaft of my B? The hole in the shaft on the B is really small (less than 1/4 inch). Is this just a cotter pin or something?
------------- 1940 B "Lucy" 1941 B w/ Woods L59 "Flavia" 1942 B w/ finish mower "Dick" 1941 C w/ 3-point "Maggie" 1947 C SFW w/ L306 "Trixie" 1972 314H |
Replies:
Posted By: jaybmiller
Date Posted: 28 Jan 2018 at 4:22pm
|
not trying to be a smart guy but I'd have thought a PTO pin would fit. I just checked mine, all are 1/4" or BIGGER. I'd try a big fat cotter pin, well oiled or greased..or an SS bolt/nut combo. ------------- 3 D-14s,A-C forklift, B-112 Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
Posted By: Stan R
Date Posted: 28 Jan 2018 at 5:14pm
| Really small bolt (less than 1/4 inch). |
Posted By: DiyDave
Date Posted: 28 Jan 2018 at 5:31pm
| I'd just drill the hole out to 1/4", Its not like its pulling 200 HP, at thousands of RPM... |
Posted By: Hubnut
Date Posted: 28 Jan 2018 at 5:37pm
|
Thanks all. I'm new to this adapter thing and I wasn't sure how secure it had to be. I'll get a pin or bolt to go in there.
------------- 1940 B "Lucy" 1941 B w/ Woods L59 "Flavia" 1942 B w/ finish mower "Dick" 1941 C w/ 3-point "Maggie" 1947 C SFW w/ L306 "Trixie" 1972 314H |
Posted By: AaronSEIA
Date Posted: 28 Jan 2018 at 6:36pm
|
Mine uses a 1/4" bolt. Roll pin should work as well. Just make sure it's good and snug. AaronSEIA |
Posted By: Tbone95
Date Posted: 29 Jan 2018 at 7:23am
| Like the guys said....you just have to hold it "on", it's not transmitting power. |
Posted By: Dusty MI
Date Posted: 29 Jan 2018 at 9:31am
|
You need to keep the telescoping shaft well lubed, because when it slides in and out it pushes and pulls on that adaptor, which will wear the pin holding it on. Dusty ------------- 917 H, '48 G, '65 D-10 series III "Allis Express" |
Posted By: Gerald J.
Date Posted: 29 Jan 2018 at 9:50am
|
The hardest time for that retaining pin is when the implement swings to the side and compresses the sliding joint in the PTO shaft between the U joints as far as it will go then it pushes on that pin and can shear it. It is important that the PTO shaft between the U joints can get short enough for that condition without pushing on the retaining pin. If its too long it can break the tractor's PTO shaft or the tractor end U joint. Gerald J. |
Posted By: CAL(KS)
Date Posted: 29 Jan 2018 at 9:56am
|
when using a drawbar pulled implement you may need to use the sae hitch as the pto extension could cause binding as said previously. I have an over running coupler on my c and its too long to run my grinder when hitched to oe drawbar ------------- Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20 Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15 |
Posted By: orangereborn
Date Posted: 29 Jan 2018 at 10:33am
|
Get an extension adapter that has a quick coupler end on it like what is on your PTO Shaft end. Be safe...Dale http://www.tractorbynet.com/forums/john-deere-owning-operating/215806-pto-shaft-extension.html" rel="nofollow - http://www.tractorbynet.com/forums/john-deere-owning-operating/215806-pto-shaft-extension.html
|
Posted By: AC7060IL
Date Posted: 29 Jan 2018 at 11:09am
|
Your tractor's operator manual (OM) should contain any pto advise. But sometimes an OM isn't available or some older tractor's OM did not advise much? If it helps, here is a weblink that gives ballpark dimensions for proper tractor pto / drawbar setups. https://articles.extension.org/sites/default/files/English%20Task%20Sheets%20Group%206.pdf" rel="nofollow - https://articles.extension.org/sites/default/files/English%20Task%20Sheets%20Group%206.pdf |
Posted By: CrestonM
Date Posted: 29 Jan 2018 at 11:27am
X2 |
CAL(KS) wrote: